A former Antioch Township volunteer is facing an additional misdemeanor charge of disorderly conduct stemming from an April incident in which he is accused of inappropriately touching a woman working on the Antioch rescue squad, according to the Lake County state's attorney's office.

Robert D. Wonderling, 66, of Lake Villa, appeared in court Friday for a pretrial hearing. Prosecutors added the misdemeanor charge of disorderly conduct to the misdemeanor battery charge after further review of the alleged April incident, said Cynthia Vargas, spokeswoman for the state's attorney's office.

Wonderling entered a plea of not guilty to the disorderly conduct charge, said Brian Smith, Wonderling's attorney. Wonderling previously had entered a not guilty plea for the battery charge, Smith said.

Wonderling, a former emergency services volunteer, is accused of inappropriately touching a female employee of the Antioch Fire Protection District, authorities have said.

At the pretrial hearing, Lake County Circuit Court Judge Veronica O'Malley ordered Wonderling to stay away from the alleged victim in the case.

Wonderling could not immediately be reached for comment.

Wonderling was the head of the township's five-person volunteer emergency management department, which focuses primarily on weather-related emergencies, said Steve Smouse, Antioch Township supervisor, in a previous interview.

Following the alleged incident, Wonderling's keys were taken from him and his access was cut off, Smouse said, pending the outcome of the legal process.

"It's a hell of a thing to have to do," Smouse said in April. "But I'm the boss and I'm not going to let that go on."